Improvement in rotary pumps



0. F. SCHULTZ.

ROTARY-PUMP.

No.17 7,079. ,Patented May'S. 1876.

N4 PETERS. FHOTVOfLITl-IOGRPNER, WASHINGTON. D. CA

J'NITFIJ `STATES PATENT OFFICE.

OTTO F. sOHUTqTZ, OF LOU1svILLF,-KENTUcKY.

IMPROVEMENT IN ROTARY PUMPS.

Specification forming part of Letters Patent No. 177,079, dated May 9,1876; application filed March 2, 1876.

To all whom it may concern:

Be it known that I, OTTO F. ScHULTz, of Lonisville,in the county of Jefferson and 'State of Kentucky, have invented certain new and usefulImprovements in Water-Elevators; and I do hereby declare that thefollowing is a full, clear, and exact description thereof', which willenable others'skilled in the art to which it appertains to make and usethe same, reference being had to the accompanying drawings, and to theletters of reference marked thereon, which form a part of thisspecification.

The nature of my invention consists in the construction and arrangementof a water-elevator, as will be hereinafter more fully set forth. Y Inthe annexed drawing, Figure 1 is a central vertical section, Fig. 2 is acentral crosssection, and Fig. 3 is an end elevation, of my invention. f

A represents a cylinder of suitable 'dimeir sions, provided with heads BB, having each an aperture, a, for the admission ofthe Water or liquidto be raised. On top ofthe cylinder is formed a chamber, C, above whichis an ordinary jack-valve, D, and above the saine again is an ordinaryair-chamber, E. G is a rotating plunger, fitting within the cylinder A,and having two, three, or more cavities or recesses, b 11Min itsperiphery. This plunger is secured on a shaft, d, to which the Apower ispassing under the pressure from the air-,chamv ber E to the escape. v

h represents another valve, with spring t', to

keep the plunger tight, so that the water cannot run back.

Having thus fully described my invention, what I claim as new, anddesire to secure by Letters Patent, is-

The combination of the cylinder A B, with inlets a, rotating plunger Gr,with cavities b, valve Hwith spring j', and water-chest (l, allsubstantially as and for the purposes herein set forth.

In testimony that I claim the foregoing as my own I affix my signaturein presence of two witnesses.

' i OTTO F. SCHULTZ.

Witnesses:

AUGUST SCHAEFFER, SAML. T. SHELLEY.

